题目内容
2..-Tom wants to know if you ___ a picnic next Sunday.-Yes.But if it ___,we'll visit the museum instead.( )
| A. | will have; will rain | B. | have; rains | ||
| C. | have; will rain | D. | will have; rains |
分析 -汤姆想知道你是否下星期天将会野餐?
-是,但是如果下雨,我们就会去博物馆.
解答 答案:D 根据Tom wants to know if you可知,考查宾语从句,if引导的是宾语从句,表示"是否".当主句是一般现在时态,宾语从句应该根据需要选用任何时态.又因为next Sunday是表示将来的时间状语,所以宾语从句应该用一般将来时态,排除BC;又因为But if it…可知,if引导的是条件状语从句,当主句是一般将来时态的句子,从句应该用一般现在时态,我们称这一现象为"主将从现",排除A,故选D.
点评 本题考查宾语从句和状语从句,if引导的是条件状语从句,当主句是一般将来时态,从句应该用一般现在时态;if引导的是宾语从句,当主句是一般现在时态或含情态动词的句子,宾语从句应该根据需要选用任何时态.
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